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Actin Molecule

Actin is pres...

Question

Actin is present in thin filament.

A

True

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B

False

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Solution

The correct option is A True
Actin is the thin filaments of the muscles. They are a polymer of G-actin monomers arranged in chains and two such chains are wound in a helix. So, the given statement is true.

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Similar questions

Q. In the transverse section of myofibril, the region of A band where thick and thin filaments overlap, each actin filament is surrounded by __(A)__thick filaments and each myosin filament is surrounded by __(B)__ thin filaments.

Q. Thin filament of myofibrils contains

2

'F' actins and two other proteins namely ............ and ............

Q. Thin filament of myofibril contains 2 F actins and two other proteins namely .......... and ...........

Q. Choose the option having all the correct statements:
I. Thin and thick filaments consist of myosin and actin, respectively.
II. The H-zone and I-band consists of only myosin and actin, respectively.
III. A-band contains both actin and myosin.
IV. M-line and Z-line are in the middle of thin and thick filaments, respectively.

Write true or false. If false change the statement so that it is true.

(a) Actin is present in the thin filament

(b) H-zone of striated muscle fibre represents both thick and thin filaments.

(c) Human skeleton has 206 bones.

(d) There are 11 pairs of ribs in man.

(e) Sternum is present on the ventral side of the body.

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